# New Animal Drugs For Use In Animal Feeds; Chlortetracycline; Technical Amendment
> **US Department of Health and Human Services** · Final rule, technical amendment. · Published 1997-03-26 · Effective 1997-03-26 · 62 FR 14303
## Document
- **Document number:** 97-7547
- **Category:** other
- **Sub-agency:** US Department of Health and Human Services
- **Federal Register citation:** 62 FR 14303
- **CFR reference:** 21 CFR 558
- **Publication date:** 1997-03-26
- **Effective date:** 1997-03-26
## Abstract

The Food and Drug Administration (FDA) is amending the new animal drug regulations that provided for approval of five supplemental new animal drug applications (NADA's) filed by Hoffmann-LaRoche, Inc.; Pfizer, Inc.; ALPHARMA, Inc.; ADM Animal Health & Nutrition Div.; and PennField Oil Co. to reflect conclusions of the National Academy of Sciences/National Research Council (NAS/NRC) review of the use of chlortetracycline Type A articles to make certain Type C medicated feeds, and FDA's conclusions based on that review.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/1997/03/26/97-7547/new-animal-drugs-for-use-in-animal-feeds-chlortetracycline-technical-amendment)
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